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NXS-GRX-WSM · Polynesia · Regions

A’ana

First-level unit, Samoa: people, area, the units inside and neighbours, with risk values when released.

Page GRX-WSM-REdition Baseline Edition 2026Evidence close 2026-09-30ISO WSM / WSStatus UN member stateValues not yet publishedMethod v1.0.0-draft
15,678
people (GHSL 2025)
204 km²
area
9%
of Samoa
6
units inside

01Map

Inside A’ana

The 6 ADM2 units of A’ana.

FIG 1 · 6 units inside A’ana
Loading the map

Units rise with people per km² · GHSL 2025 raster · terrain · ADM1 ADM2Risk values when released
Lowest fifthLow fifthMiddle fifthHigh fifthHighest fifthNo data
Column height and colour show people per km² by unit, in quantile fifths among the units shown (the key on the map gives the breaks); units with no people on the grid are grey, not the lowest class; the raster beneath is the GHSL 2025 population grid. Source observations, not index values. Select a unit to drill into the units inside it; the path above the map climbs back.
02Figures

People, area and density

Source observations from open grids summed inside the boundary; not index values.

People · GHSL 2025

15,678

9% of Samoa.

People · WorldPop 2025

17,071

+9% against GHSL; the two grids differ in method.

ప్రాంతం

204 km²

77 people per km².

కోడ్

a-ana

No subdivision code in the boundary source.

Low coastal zone

858

people on land at or below 10 m, 5.5% of the unit (GEBCO 2024 and GHSL 2025).

03Units

6 units inside A’ana

Each unit has its own page.

Boundary licences: Creative Commons Attribution-ShareAlike 3.0 Unported · Creative Commons Attribution 4.0 (CC BY 4.0)

Unit కోడ్ People (GHSL) People (WorldPop) Area km² Per km² Share Coast ≤ 10 m
Aana Alofi I – 10,839 11,585 31.15 348 65.7% 654
Aana Alofi II – 787 946 15.09 52 4.8% 0
Aana Alofi III – 402 589 41.7 10 2.4% 0
Falelatai & Samatau – 268 439 32.91 8 1.6% 0
Gagaemauga II (PART) – 2,263 1,884 12.99 174 13.7% 169
Lefaga & Faleseela – 1,930 2,611 71.68 27 11.7% 35
04బహిర్గతం

Open exposure layers

Count of H3 resolution-3 cells whose centre falls in the unit and that carry each Natural Earth layer.

Urban areas
None at this resolution
Ports
None at this resolution
Airports
None at this resolution
Major roads
None at this resolution
Railways
None at this resolution
Rivers and lakes
None at this resolution
05ప్రమాదం

Risk values

Values when released. Subnational risk values for A’ana publish with the edition from The Global Risks Index. Until then, run a scenario on open data for Samoa.
06Neighbours

Neighbouring units

07మూలాలు

Sources, credits and licences

ADM1 boundaries
geoBoundaries (William & Mary geoLab), gbOpen WSM ADM1, source: Wikipedia, licence: Creative Commons Attribution-ShareAlike 3.0 Unported (share-alike: this boundary layer is offered under the same licence) · source · represents 2018. Offered under the same licence (Creative Commons Attribution-ShareAlike 3.0 Unported), kept as its own layer and not merged into other data.
ADM2 boundaries
geoBoundaries (William & Mary geoLab), gbOpen WSM ADM2, source: Pacific Data Hub, SPC Statistics for Development Division (SDD), licence: Creative Commons Attribution 4.0 (CC BY 4.0) · source · represents 2011
Basemap
OpenFreeMap © OpenMapTiles (CC BY 4.0) · data © OpenStreetMap contributors (ODbL 1.0). Vector tiles requested by the reader’s browser, unmodified; the map falls back to plain land and sea when the host does not answer.
Terrain
Terrain Tiles (Mapzen, AWS Open Data), compiled from SRTM and other public elevation sources (NASA, USGS, ETOPO1, GMTED, EU-DEM under the Copernicus programme, Geoscience Australia, Kartverket, INEGI, LINZ, data.gov.uk). Display relief, not survey data.
People
GHSL 2025 population grid, European Commission Joint Research Centre (CC BY 4.0), shown at 0.05° and summed per unit; WorldPop 2025 (CC BY 4.0) as a second estimate. Units smaller than a grid cell take the density of the cell under them.
దేశాలు
Natural Earth (public domain).
Elevation
GEBCO Compilation Group (2024) GEBCO 2024 Grid (public domain), reduced to 0.05°: the share of each cell’s land at or below 10 m, weighted by GHSL 2025 people for the low coastal zone.
Position
Boundaries are shown for location only and take no position on any boundary, name or status.